21024580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61837}}^1$

素因数の和:61863

約数の個数: 24

約数和(自身を含む): 46749528

約数和(自身を除く): 25724948

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61837, 123674, 247348, 309185, 618370, 1051229, 1236740, 2102458, 4204916, 5256145, 10512290, 21024580]

約数ペア:

[(1, 21024580), (2, 10512290), (4, 5256145), (5, 4204916), (10, 2102458), (17, 1236740), (20, 1051229), (34, 618370), (68, 309185), (85, 247348), (170, 123674), (340, 61837)]